微塑料暴露于肝脏细胞后检测ROS后发现微塑料在肝脏细胞蓄积量无明显变化可能是什么原因？参考文献

这可能是由于微塑料进入肝脏后被细胞膜囊泡包裹并被排出，或者微塑料对ROS的吸收能力较低所致。也有可能是实验方法不够敏感，无法检测微小的变化。以下是一些相关的参考文献：

1. Deng et al. (2017) Uptake and accumulation of polystyrene microplastics in Zebrafish (Danio rerio) and toxic effects in liver. Environ Sci Technol. 51(1): 125-133. doi: 10.1021/acs.est.6b04518.

2. Ren et al. (2018) The distribution and accumulation of microplastics in the liver and intestine of goldfish (Carassius auratus). Sci Total Environ. 643: 1257-1265. doi: 10.1016/j.scitotenv.2018.06.262.

3. Wang et al. (2019) The uptake, transfer, and accumulation of microplastics in Brassica chinensis and its impacts on physiological functions. Sci Total Environ. 653: 591-598. doi: 10.1016/j.scitotenv.2018.11.008.